conf/vldb/80 Gerald A. Wilson A Conceptual Model for Semantic Integrity Checking. 111-125 1980 VLDB db/conf/vldb/vldb80.html#Wilson80 db/conf/vldb/Wilson80.html VLDB80/P111.PDF ... ... journals/cacm/Backus78 conf/vldb/BernsteinBC80 ... ... ... persons/Codd71 ... ... conf/vldb/EswaranC75 ... journals/cj/Florentin74 conf/pacific/Graves75 conf/vldb/HammerM75 conf/sigmod/HammerS78 ... ... ... ... conf/sigmod/Stonebraker75 ... conf/vldb/WilsonS79 ... ...